Home / 28,038.47-38,690.39-15,462.41

Finding the Fourth Proportional to 28,038.47, 38,690.39 and 15,462.41

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Solution

The fourth proportional to 28,038.47, 38,690.39 and 15,462.41 is: 21,336.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,038.47 : 38,690.39 = 15,462.41 : x
  2. Step 2: Convert to fraction form
    28,038.47/38,690.39 = 15,462.41/x
  3. Step 3: Cross multiply
    28,038.47x = 38,690.39 × 15,462.41
  4. Step 4: Simplify right side
    28,038.47x = 598,246,518.44
  5. Step 5: Solve for x
    x = 598,246,518.44/28,038.47
  6. Step 6: Final answer
    x = 21,336.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.